Phase-field modeling of fracture for quasi-brittle materials

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dc.identifier.uri Ulloa, Jacinto Rodríguez, Patricio Samaniego, Cristóbal Samaniego, Esteban 2019-08-15T11:13:37Z 2019-08-15T11:13:37Z 2019
dc.identifier.citation Ulloa, Jacinto; Rodríguez, Patricio; Samaniego, Cristóbal; Samaniego, Esteban: Phase-field modeling of fracture for quasi-brittle materials. In: Underground Space 4 (2019), Nr. 1, S. 10-21. DOI:
dc.description.abstract This paper addresses the modeling of fracture in quasi-brittle materials using a phase-field approach to the description of crack topology. Within the computational mechanics community, several studies have treated the issue of modeling fracture using phase fields. Most of these studies have used an approach that implies the lack of a damage threshold. We herein explore an alternative model that includes a damage threshold and study how it compares with the most popular approach. The formulation is systematically explained within a rigorous variational framework. Subsequently, we present the corresponding three-dimensional finite element discretization that leads to a straightforward numerical implementation. Benchmark simulations in two dimensions and three dimensions are then presented. The results show that while an elastic stage and a damage threshold are ensured by the present model, good agreement with the results reported in the literature can be obtained, where such features are generally absent. eng
dc.language.iso eng
dc.publisher Amsterdam : Elsevier B.V.
dc.relation.ispartofseries Underground Space 4 (2019), Nr. 1
dc.rights CC BY-NC-ND 4.0 Unported
dc.subject Elasticity (economics) eng
dc.subject Statistical physics eng
dc.subject Finite element method eng
dc.subject Brittleness eng
dc.subject Computer science eng
dc.subject Computational mechanics eng
dc.subject Discretization eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Phase-field modeling of fracture for quasi-brittle materials
dc.type Article
dc.type Text
dc.relation.issn 2467-9674
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 4
dc.bibliographicCitation.firstPage 10
dc.bibliographicCitation.lastPage 21
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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